when I use the functions described on your website.
some function work well such as count()  and min(),
But with exp() it returned with Function undefined. functionName=[EXP] not found

my phoenix version is phoenix-4.4.0-HBase-0.98-bin.
I just want to confirm whether my version not support some function,
and where can i find the functions my version support?

                                    Thanks very much.
                                            Zhang Yang